These tests include questions from the five core knowledge areas contained in the Operatives test as well as relevant questions in the chosen specialist areas. The Specialists test can be taken in the following topics:

• supervisory (SUP)
• demolition (DEM)
• plumbing (JIB) (PLUM)
• highway works (HIW)
• specialist work at height (WAH)
• lifts and escalators (LAEE)
• tunnelling (TUNN)
• HVACR – heating and plumbing services (HAPS)
• HVACR – pipefitting and welding (PFW)
• HVACR – ductwork (DUCT)
• HVACR – refrigeration and air conditioning (RAAC)
• HVACE – services and facilities maintenance (SAF)

The pass mark for each of the Specialist tests is 90%. To pass, you need to answer at least 45 out of 50 questions correctly.

The official CITB GT100 publication contains all of the content that is covered within the test in the form of questions and answers so that you can fully prepare for your test. It is also available as a digital download. There is a smartphone app which provides test simulations so you can practise answering knowledge questions against the clock and highlight the areas where further preparation is needed.